Combine HDs into one partition

Intel
May 21, 2007 at 15:15:39
Specs: XP, Intel 1 gig

How do I combine multiple hard disks into one partition?
I need to link combine concatenate multiple physical hard disks into one.
I can set them as slaves etc as they are new. NTFS acceptable, running XP/SP2.

Can't find answer with typical search.
I need to have one logical drive as target SW will only address one. I have multiple 300 and 500 gig drives to combine.


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#1
May 21, 2007 at 15:18:28

That is called a Dynamic Disk. Look in Windows help under that heading. You may need to be using WinXP Pro.

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#2
May 21, 2007 at 15:30:42

I'm curious as to what software you're using the has this requirement.

Life's more painless for the brainless.


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#3
May 21, 2007 at 16:03:22

http://support.microsoft.com/kb/308424

its called a spanned volume by MS.

Note: no fault tolerance. One disk errors or dies you lost everything on ALL spanned disks with no recovery.

Imagine the power if you knew how to internet search


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Related Solutions

#4
May 21, 2007 at 16:15:18

Wanderer - I wonder what's the purpose of a spanned volume. Care to full me in?

i_XpUser


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#5
May 21, 2007 at 16:22:17

The main advantage of a dynamic disk is that you can add additional storage without having to change the path to that storage. I believe this type of array can also be made fault tolorant by mirroring the dynamic disk. Of course that can't be done with a PC.
trvlr
Feel free to correct me on that if I am mistaken. Been awile since I read up on it (Win2000).

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#6
May 21, 2007 at 18:33:00

Just-a-Bunch-Of-Disks (JBOD)

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#7
May 21, 2007 at 22:14:50

XPUser:
It is a way of adding disk space without changing any of the logical pointers. Normally when you add a disk it would have a drive letter assignment. It's like a 55gal drum connected at the top to another 55gal drum. When the first fills up it spills into the second. If that pointer between the drums gets hosed you lost everything. I see it as a way to overcome poor planning or for storing noncritical but backed up data. If you were creating huge temp files it would be useful for that. Using it for anything else is foolhardy.

Othehill you can't make a spanned volume fault tolerant. You can't mirror it using dynamic disks. When you see statements like "spanned disks can be mirrored" they are talking Raid 0+1 which you can not do with dynamic disks.

I have seen all sorts of 'creative' configs. Hardware raid5 with 3 disks then they add a disk and span the data volume. Boy are they in for a surprise! Lose the spanned disk you lost the data volume. But its raid5 they cry! But you created a non fault tolerant disk on a fault tolerant array. You build a sand castle on bedrock it will still wash away.

Definations have changed in the 17 plus years I have been in the industry. Jbod was nothing but a collections of disk off a raid controller with no raid config. For some now its a spanned volume. Kinda like MS changing boot and system disk definations from dos days.

Are you ready for where Microsoft wants you to go today?


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